Aquaculture – a word that has it all. It is well known that aquaculture means controlled rearing of aquatic organisms, i.e. animals that live in water. In addition, however, to the initiated, the term aquaculture implies a long and steadily growing list of challenges that arise, for example, in the commercial production of fish and crustaceans. Leiber Brewers’ Yeast products help you overcome these challenges efficiently and sustainably.

Product range

Pole position in the water

Leiber Brewers’ Yeast®

Real brewers’ yeast, real efficacy.

Leiber Brewers’ Yeast® is rich in valuable bioavailable active ingredients and nutrients. It is produced in a sustainable way in breweries – in compliance with strict food quality guidelines. This makes it a real brewers’ yeast, because it contains the polyphenols from the hops, which are added during the brewing process. These hop polyphenols complement the well-known beneficial nutritional properties of brewers’ yeast by providing additional antioxidant and bacteriostatic effects.

 

Advantages of Leiber Brewers’ Yeast® in aquaculture:

  • Rich in valuable nutrients and active ingredients
  • Dietetic and prebiotic effects
  • Antioxidant and bacteriostatic effects
  • Available in roller-dried and spray-dried form

CeFi® pro

The all-rounder.

CeFi® pro combines the positive effects of beta-glucans and mannan oligosaccharides in the cell wall with the natural components of the cell interior like peptides, free amino acids and nucleotides in one product.

 

This addresses not only immune-relevant and prebiotic effects; the high concentration of valuable cell constituents also becomes bioavailable to the organism much more quickly and easily owing to the cell wall perforation caused by autolysis.

 

Advantages of CeFi® pro in aquaculture:

  • High bioavailability of the nutrients through autolysis
  • Particularly suitable for species with a short digestive tract
  • Suitable for demanding recipes
  • Helps maintain and develop good gut health (eubiosis)
  • Stimulates the metabolism
  • Positive effects on performance

Biolex® MB40

The inner protective shield

Biolex® MB40 is characterised by a number of different mechanisms of action, for example the prebiotic effect, binding and displacement of certain pathogens and mycotoxins and general improvement of gut health.

Biolex® MB40 consists of cell walls of brewers’ yeast (100% Saccharomyces cerevisiae), obtained by centrifugation after biotechnological disruption of yeast cells. During this process, mannan oligosaccharides (MOS) and beta-glucans accumulate and specifically active segments of the cell wall are released.

 

Advantages of Biolex® MB40 in aquaculture:

  • Helps maintain and develop digestive tract health (eubiosis)
  • Supports disturbed intestinal microbiome (dysbiosis)
  • Can be used in difficult rations (vegetable proteins, mycotoxins, etc.)
  • Improves the morphology and integrity of the digestive tract
  • Helps maintain and promote immune competence in growth phases

Representation of the mechanisms of action of Biolex® MB40

Leiber® Beta-S

Leiber Beta-S. Outstanding!

Leiber® Beta-S products with highly pure beta-1,3-1,6-glucan molecules from the cell wall of brewers’ yeast (100% Saccharomyces cerevisiae) increase the immune competence of animals, thus supporting their natural defences. A particularly gentle process developed by Leiber detaches the beta-glucans from the cell wall complex of brewers’ yeast. In this way, the native structure of the molecules and thus their biological activity is retained much better than in conventional methods. The beta-glucans are recognised by immune cells in intestinal tissue by means of specific receptors, which induce a broad immune response via signal cascades without triggering disease symptoms. To increase the immune competence and thus support the natural defence of all animals, our highly purified glucans offer an optimal solution.

 

Advantages of Leiber® Beta-S in aquaculture:

  • Increases non-specific and specific immune responses
  • Increases resistance to stress and disease
  • As a result, higher survival rates
  • Increases vaccination effect (adjuvant effect)
  • Immune system build-up in the larval and juvenile stages
  • Long-term administration possible (no immunodepression)

Presentation of the main mechanisms of action of Leiber® Beta-S

  1. Uptake of ß-glucans from the gut lumen via M cells and phagocytosis by macrophages (or also via dendritic cells)
  2. Activation of macrophages increases phagocytosis and the release of reactive oxygen and nitrogen radicals (oxidative burst), antimicrobial peptides and lysozyme  increased combat of pathogens
  3. Release of cytokines and chemokines recruits more immune cells. Macrophages present antigenic structures to T and B cells, causing B cells to subsequently produce antibodies
  4. Activated macrophages migrate to organs of the immune system where they break down the ß-glucans into smaller fragments
  5. In the organs of the immune system (bone marrow, spleen and lymph nodes), these ß-glucan fragments and cytokines are released, activating other immune cells such as granulocytes and NK and T cells

Leiber NuTaste®

Irresistibly healthy.

Leiber NuTaste® – increases the attractiveness and acceptance of feed. Using a particularly gentle process developed by Leiber, the soluble cell interior (yeast extracts) is released and detached from its natural yeast cell wall connection. Only in this way can the individual components exert their effect. In addition, this enriches the relative content of valuable nutrients and active substances in the cell interior (proteins, amino acids, nucleotides, vitamins, minerals and trace elements). In particular, the water solubility of the extracts in combination with the high levels of free amino acids and nucleotides increases attractiveness and palatability, thus increasing feed intake.

 

Advantages of Leiber NuTaste® in aquaculture:

  • Increased attractiveness and acceptance of feed
  • Higher feed intake and less feed loss
  • Suitable for demanding recipes
  • Positive effect on growth performance and feed conversion

Functions

Fishy facts

Worldwide, the number of species produced is estimated to be over 600, with around 90% of the produced amount of fish and crustaceans (especially shrimp) being accounted for by 27 or 6 species. This diversity is reflected by the variety of environmental and climatic conditions, such as salt, brackish, fresh, cold and warm water. The production requirements differ accordingly. The proportion of fed aquatic species versus unfed species in aquatic animal production has risen to almost 70% since 2000. Owing to the increased demand for feed, the demand for raw materials is also increasing. This fact, combined with the increasing importance of sustainable production and animal welfare and the need for economic efficiency, leads to a complex trade-off.

Animal welfare fish

Animal welfare fish

Animal welfare fish

In terms of fish feeds, Leiber Brewers’ Yeast products make an effective contribution to strengthening the digestive and immune systems of fish to achieve and stabilise high animal welfare standards. Animal welfare and productivity are not incompatible – on the contrary!

Only fish with intact immune and digestive systems can grow in a healthy and sustainable way and develop their full potential. Fish kept according to high animal welfare standards are less stressed, less susceptible to disease and require fewer drug or veterinary treatments.

 

Advantages of Leiber Brewers’ Yeast products for fish:

  • Vital and healthy fish population
  • Important for all life stages of the fish
  • Improved image for consumers

Animal welfare crustacean

Animal welfare crustacean

Animal welfare for crustaceans: tough on the outside. Healthy at the core.

Fact: investing in animal welfare always pays off. In crustacean breeding, Leiber Brewers’ Yeast products help to increase and stabilise the immune status of the stock sustainably. Crustaceans, for example shrimp, with intact immune and digestive systems can grow in a healthy and sustainable way and thus develop their full potential. Crustaceans kept according to high animal welfare standards are less stressed, less susceptible to disease and require fewer drug or veterinary treatments. Ultimately, all this has a positive effect on the profitability of production.

 

Advantages of Leiber Brewers’ Yeast products for crustaceans:

  • Vital and healthy stock
  • Important for all life phases of crustaceans
  • Improved image for consumers with intelligent marketing

Metabolism, fish

Metabolism, fish

Leiber Brewers’ Yeast – a turbocharger for the metabolism

Leiber Brewers’ Yeasts are not just a natural source of protein. They also contain a large number of valuable metabolism-boosting active ingredients and other ingredients – which is often reflected in higher growth rates, especially in aquaculture.

 

Advantages of Leiber Brewers’ Yeast products for fish:

  • Stimulate the metabolism
  • Increase performance
  • Higher profitability

Metabolism, Crustacean

Metabolism, Crustacean

The more Leiber, the better.

Thanks to their special ingredients, Leiber Brewers’ Yeast products make an important contribution – under the most varied of environmental conditions – to stabilising the natural metabolism of crustaceans and thus the overall health of the stock. This also therefore makes economic sense.

 

Advantages of Leiber Brewers’ Yeast products for crustaceans:

  • Stimulate the metabolism
  • Positive effects on performance
  • Higher profitability

Nutrients and active ingredients, fish

Nutrients and active ingredients, fish

It’s got everything!

Leiber Brewers’ Yeasts are particularly suitable for demanding recipes, e.g. rations with a high concentration of vegetable protein and oil components. Brewers’ yeasts are more than just a protein carrier. They are also characterised by their high levels of bioactive ingredients like beta-glucans and mannan oligosaccharides in the cell walls and nutrients like free amino acids, vitamin B complexes, minerals and trace elements.

 

Advantages of Leiber Brewers’ Yeast products in fish farming:

  • Upgrading of the feed
  • Saving of other components possible
  • Suitable for demanding recipes

Nutrients and active ingredients, crustacean

Nutrients and active ingredients, crustacean

Leiber Brewers’ Yeast – good to go for shrimps and more.

Leiber Brewers’ Yeast products are much more than just protein carriers. They are characterised by their high levels of bioactive ingredients like beta-glucans and mannan oligosaccharides in the cell walls and other nutrients like free amino acids, vitamin B complexes, minerals and trace elements. They are therefore particularly suitable for demanding recipes, for example rations with a high concentration of vegetable protein and oil components.

Advantages of Leiber Brewers’ Yeast products for crustaceans:

  • Upgrading of the feed
  • Saving of other components possible
  • Suitable for demanding recipes

Palatability, fish

Palatability, fish

Irresistibly tasty, undeniably valuable.

The autolysed and inactivated yeasts and yeast extracts in Leiber Brewers’ Yeast products not only perform nutritional functions within special recipes, but have also been used as natural flavour enhancers for a long time, meaning they have a lasting positive effect on acceptance and feed intake. Leiber Brewers’ Yeast products are therefore particularly suitable for demanding recipes, such as rations with a high concentration of vegetable protein and oil components.

 

Advantages of Leiber Brewers’ Yeast products for fish:

  • Higher feed intake
  • Less feed loss
  • Suitable for demanding recipes
  • Positive effect on growth performance

Palatability, crustaceans

Palatability, crustaceans

In the end, it’s all about taste.

The inactivated and autolysed yeasts and yeast extracts in Leiber Brewers’ Yeast products have long been used as natural flavour enhancers. They not only perform nutritional and other special functions within the recipes, but also cause a sustained improvement in acceptance and feed intake. Leiber Brewers’ Yeast products are therefore particularly suitable for demanding recipes, such as rations with a high concentration of vegetable protein and oil components.

 

Advantages of Leiber Brewers’ Yeast products for crustaceans:

  • Improved attractiveness and acceptance of the feed
  • Higher feed intake, less feed loss
  • Suitable for demanding recipes
  • Positive effect on growth performance

Gut health, Fish

Gut health, Fish

Prebiotic. Promotes health.

Prebiotic ingredients in inactivated yeast products serve as a substrate for the intestinal microbiome and thus effectively influence the digestive and absorption processes of fish. Displacement and binding of certain potential pathogens and mycotoxins can also be achieved using yeast products.

 

Gut health plays an extremely important role, since the digestive tract of fish is considered to be one of the main routes of infection. Intestinal protection is active immune protection, because approx. 70% of immune cells are located in the lymphatic intestinal tissue (GALT – gut-associated lymphoid tissue).

 

Advantages of Leiber Brewers’ Yeast products for fish:

  • Help maintain and develop good gut health (eubiosis)
  • Support disturbed intestinal microbiome (dysbiosis)
  • Can be used in difficult rations (vegetable proteins, mycotoxins, etc.)
  • Improve intestinal morphology and integrity
  • Help maintain immune competence in growth phases

Gut health, crustacean

Gut health, crustacean

Prebiotic – promotes health.

Gut health plays an extremely important role, since the digestive tract of crustaceans is considered to be one of the main routes of infection. Prebiotic ingredients in inactivated yeast products serve as a substrate for the intestinal microbiome and thus effectively influence the digestive and absorption processes of crustaceans. Displacement and binding of certain potential pathogens and mycotoxins can also be achieved using yeast products.

 

Advantages of Leiber Brewers’ Yeast products for crustaceans:

  • Help maintain and develop digestive tract health (eubiosis)
  • Support disturbed intestinal microbiome (dysbiosis)
  • Can be used in difficult rations (vegetable proteins, mycotoxins, etc.)
  • Improve the morphology and integrity of the digestive tract
  • Help maintain and promote immune competence in growth phases

Immune system, fish

Immune system, fish

Bodybuilding for immune competence

Leiber Brewers’ Yeast products with highly purified glucans effectively promote immune competence and natural resistance of the stock. The immune system of fish is their best protection against negative environmental influences – like stress from demanding accommodation conditions and handling, pathogens and toxins. Leiber Brewers’ Yeast products help significantly in reducing performance dips, serious disease and mortality.

 

Advantages of Leiber Brewers’ Yeast products for fish:

  • Increase non-specific and specific immune responses
  • Increase resistance to stress and disease
  • As a result, higher survival rates
  • Increase vaccination effect (adjuvant effect)
  • Immune system build-up in larval and juvenile stages
  • Long-term administration possible (no immunodepression)

Immune system, crustaceans

Immune system, crustaceans

Unbreakable.

Leiber Brewers’ Yeast products with highly purified glucans effectively support the non-specific immune system of crustaceans. Unlike vertebrates, they don’t have a specific immune system, so this is the best protection against negative environmental influences – like stress from demanding accommodation conditions and handling, pathogens and toxins. Leiber Brewers’ Yeast products help significantly in reducing losses due to performance dips, serious disease and mortality.

 

Advantages of Leiber Brewers’ Yeast products for crustaceans:

  • Activate non-specific immunity
  • Increase immune competence
  • As a result, increased resistance to stress and disease
  • Higher survival rates

Performance, fish

Performance, fish

Fuel for your economic success!

Leiber Brewers’ Yeast products support the vitality and resilience of fish. The high bioavailability of the active ingredients and nutrients in our products contributes to the high utilisation of growth potential.

 

Advantages of Leiber Brewers’ Yeast products for fish:

  • Higher growth performance and better feed conversion
  • Better nutritional status and metabolism
  • Relevant in all growth phases, especially in the larva and fry stages

Performance, crustaceans

Performance, crustaceans

Active growth promotion

Performance parameters like growth and feed conversion are not just of great importance for economic success. Our products also support the vitality and resilience of animals. The high bioavailability of the active ingredients and nutrients in our products contributes to the high utilisation of growth potential, which is particularly beneficial in the short digestive tract of shrimp.

 

Advantages of Leiber Brewers’ Yeast products for crustaceans:

  • Improved growth, feed intake and feed conversion
  • Shorter production cycles
  • Relevant in all growth phases, especially in PL stages

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